Q.1
Modular ratio of two materials is the ratio of
Q.2
The given figure shows the Mohr's circle of stress for two unequal and like principal stresses (σx and σy) acting at a body across two mutually perpendicular planes. The normal stress on an oblique section making an angle θ with the minor principle plane is given by
Strength of Materials mcq question image
Q.3
The property of a material which allows it to be drawn into a smaller section is called
Q.4
If the radius of wire stretched by a load is doubled, then its Young’s modulus will be
Q.5
For which material the Poisson's ratio is more than unity
Q.6
The value of modulus of elasticity for mild steel is of the order of
Q.7
Shear strength of the welded joint for double parallel fillet is (where τ = Allowable shear stress for weld metal)
Q.8
The tensile strength of the welded joint for double fillet is (where s = Leg or size of the weld, l = Length of weld, and σt = Allowable tensile stress for weld metal)
Q.9
A thin cylindrical shell of diameter (d), length (l) and thickness (t) is subjected to an internal pressure (p). The hoop stress in the shell is
Q.10
A thin cylindrical shell of diameter (d) length (l) and thickness (t) is subjected to an internal pressure (p). The longitudinal stress in the shell is
Q.11
Shear modulus is the ratio of
Q.12
Rupture stress is
Q.13
The relation between Young's modulus (E) and bulk modulus (K) is given by
Q.14
The relation between Young's modulus (E), shear modulus (C) and bulk modulus (K) is given by
Q.15
Lame's theory is associated with
Q.16
The assumption made in the theory of the reinforced cement concrete beam is that
Q.17
Fatigue test is carried out for
Q.18
The change in length due to a tensile or compressive force acting on a body is given by (where P = Tensile or compressive force acting on the body, l = Original length of the body, A = Cross-sectional area of the body, and E = Young's modulus for the material of the body)
Q.19
Young’s modulus of a wire is defined as the stress which will increase the length of wire compared to its original length by
Q.20
In order to avoid tearing off the plate at an edge, the distance from the center of the rivet hole to the nearest edge of the plate (i.e. margin) should be (where d = Diameter of rivet hole in mm)
Q.21
It equal and opposite forces applied to a body tend to elongate it, the stress so produced is called
Q.22
In the below figure, Hook's law holds good, for the portion from_________.
Strength of Materials mcq question image
Q.23
In the below figure, the point C represents
Strength of Materials mcq question image
Q.24
In the below figure, the plastic range occurs
Strength of Materials mcq question image
Q.25
In a stress-strain diagram for mild steel, as shown in the below figure, the point ‘A’ represents
Strength of Materials mcq question image
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